Charles j



(No Model.)

.0. J. HARTLEY.

AUTOMATIC GRAIN WEIGHEB. No. 410,243. Patented Sept. 3, 1889 Fig.

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2 n 7 g O O Q m 0 f e O 6 f/ ATTEZST' a I NVENTOR X944 p HARTLEY Wfl'w/wmwwelm UNITED STATES PATENT OFFICE.

CHARLES J. HARTLEY, OF DECATUR, ILLINOIS, ASSIGNOR OF TXVO-THIRDS TOJOHN K. IVARREN AND BRADFORD K. DUREEE, OE SAME PLACE.

AUTOMATIC GRAIN-WEIGHER.

SPECIFICATION forming part of Letters Patent No. 410,243, datedSeptember 3, 1889. Application filed May 17, 1889. Serial No. 311,107.(No model.)

T (035 whom it may concern.-

Be it known that I, CHARLES J. HARTLEY, of the city of Decatur, countyof Macon, and State of Illinois, have invented certain new and usefulIm11 rovemcnts in Automatic GrainlVeighers, of which the following is aspecification.

This invention relates to automatic weighers for grain and otheranalogous com modi- [o ties. It is designed to provide meansfordiminishing the flow into the weighing-receptacle during the weighingprocess, and to entirely and automatically stop the flow when required;and it consists in the details of con- I 5 struction and combinations ofparts hereinafter set forth and claimed.

In the drawings accompanying and forming a part of this specification,Figure 1 is a side elevation of a weigher embodying my invention andFig. 2 is an enlarged view of the essential features without bearin gsor supports, but in proper relative positions, the hopper andclosing-valve being shown in vertical section.

The hopper a is supported from standard I). The beam 0 pivots onbearings supported by the standard, and is bifurcated to embrace thehopper. The weighing-receptacle (1 (lepends from the scale-beam underthe hopper.

0 The hopper has the valve 6, which forms one of its sides, and ispivotally swung at (2. An arm f projects from the upper portion of thevalve both laterally and upwardly, and it carries an adjustable wedge g.Lever t' is piv- 3 5 oted to the hopper. It carries rollers 7t and Z,the one adapted to the wedge and the other to the scale-beam or anupward extension on thereof, and it is weighted at its outer end. A stopa on the hopper limits the downward swing of the outer end of the lever.The weighted arm 0 is pivoted to the rear of the hopper in unstableequilibrium. It carries in its lower end roller p, which is adapted tothe valve, and it is held normally in its shown position by trip-bar q.The trip-bar engages a suitable catch in the upper end of the weightedarm, and it is carried and actuated by a register, (shown at 7,) thatmay be set to act on the trip bar after any desired number of operationsof the weigher. As shown in Fig. 1 the receptacle is discharging and thelever dis bearing against the wedge and holding the lower end of thevalve more or less nearly against the opposite side of the hopper, thusrestricting the flow which is designed ordinarily to be entirely stoppedby other means at this particular juncture. As shown in Fig.

2 the scale-beam has raised the lever or the outer end thereof in suchmannerth at theroller is clear of the wedge, and the valve is swung opento permit the free passage of grain. These are extreme positions, inneither of which the function of the valve is fairly exemplified; butlet it be supposed that the receptacle has been nearly filled to thedischarging-point and has descended to an intermediate position andpaused. Then it will be seen that the valve will have been partly closedand that the complement of grain must be supplied to the receptacle in asmall stream, the extent of which may be minutely adjusted by shiftingthe position of the wedge on its arm. Ordinarily the weighted arm 0 hasno effect on the operation of the valve; but when the trip-bar is thrownby the register mechanism the weighted end will descend by force ofgravity and force the valve completely closed, thus stopping theoperation of the machine.

The weighing-receptacle, with it adjuncts, (shown in Fig. 1 of thedrawings,) forms no part of this present invention otherwise than aboveset forth, and the hopper, with its peculiar features, is adapted foruse in conj unction with all automatic Weighers, the beams 8 of whichmake a temporary stop to enable the completing weight to be slowlyadded.

The construction of the register is not essential so long as theautomatic releasing peculiarity is present, and this has no place in mypresent invent-ion except in the general manner hereinbefore specified.The incline g is preferably secured to arm f by means of a set-boltpassed through a slot in the arm and screwed into the wedge but othermeans for providing for the necessary adjustment are readily apparent.

I claim as new and desire to secure by Letters Patent- 1. In weighers,in combination, the beam supporting the weighing-receptacle, the hop perhaving the swinging side, the arm on the l swinging side carrying theadjustable inthe weight in unstable equilibrium, as and c1ine,and theweighted lever resting 'o1'di-. for the purpose set forth. 7 1o 1 narilyon the beam and acting intermittently In testimony whereof I sign myname in the the incline, as set forth. presence of two subscribingwitnesses. 5 2. In weighers, in combination, the hopper CHARLES J.HARTLEY.

having the swinging side,'the weighted arm Attest: havin g the extensionadapted to the lower end GILES R. \VARREN, of the swinging side, and thetrip-bar to hold \VALTER O. KEELER. l i

